On 2019-Sep-02, Peter Eisentraut wrote: > On 2019-09-02 20:54, Swen Kooij wrote: > > I've been working on an extension that tightly integrates > > postgres with underlying filesystem . I need to customize > > how postgres copies directories for new databases. > > Could you share some more details, so we can assess whether that is a > sensible way to go about it, and what other hooks might be needed?
It seems either terribly high-level, or terribly low-level, depending on how you look at it. I wonder to what extent it conflicts with the table AM work, and with the idea of allowing FDWs to have real relfilenodes. I wonder if this is just one missing piece that's needed to complete something of a layer for which other pieces are already satisfied by other hooks. As is and pending further explanation, it seems a bad idea to me. If we want pluggability here, maybe we need some new abstraction layer. -- Álvaro Herrera https://www.2ndQuadrant.com/ PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services
